Alternate financing for SaaS SMB

We recently went under LOI for a ~$1m SaaS SMB that is not SBA-eligible due to its current international incorporation. While we can execute the deal using a mix of cash, Boopos and seller financing (~30%), we would like to explore alternate financing options (i.e., non-SBA notes, etc.) that may be less expensive than Boopos and have a longer term.

Some financial highlights the business:

-~$200k EBITDA
-~2% historical average churn rate

If you know of any options, please comment on this post and we will PM with more detail.